Image sharpness, Fourier optics, and redundant-spacing interferometry.
Abstract
A simple proof of the image sharpness criterion S(1) introduced by Muller and Buffington (1974) is presented. Similarities between this type of imaging, which involves the real-time dynamic cancellation of phase errors introduced by atmospheric turbulence, and the interferometric techniques for diffraction-limited imaging used by radioastronomers are considered. It is suggested that several other sharpness criteria are of limited validity.
- Publication:
-
Journal of the Optical Society of America (1917-1983)
- Pub Date:
- August 1977
- DOI:
- 10.1364/JOSA.67.001122
- Bibcode:
- 1977JOSA...67.1122H
- Keywords:
-
- Atmospheric Optics;
- Fourier Transformation;
- Image Contrast;
- Interferometry;
- Sharpness;
- Diffraction Patterns;
- Phase Error;
- Radio Astronomy;
- Turbulence Effects;
- Instrumentation and Photography